Global Patent Index - EP 0970024 A1

EP 0970024 A1 20000112 - METHOD FOR PRODUCING A GLASS OBJECT HAVING AT LEAST ONE RECESS

Title (en)

METHOD FOR PRODUCING A GLASS OBJECT HAVING AT LEAST ONE RECESS

Title (de)

VERFAHREN ZUM HERSTELLEN EINES GLASKÖRPERS MIT MINDESTENS EINER AUSNEHMUNG

Title (fr)

PROCEDE DE FABRICATION D'UN OBJET EN VERRE COMPRENANT AU MOINS UN EVIDEMENT

Publication

EP 0970024 A1 (DE)

Application

EP 98928055 A

Priority

  • DE 9800849 W
  • DE 19712779 A

Abstract (en)

[origin: WO9842628A1] An etching mask (4) with at least one etching window (5) is applied on a glass object (1) consisting substantially of boron silicate glass. Subsequently, the glass object (1) is etched through the etching window (5) by using, for instance, HF, thereby producing trapezoidal trenches or truncated pyramidal grooves in its cross-section.

IPC 1-7

C03C 15/00; G02B 6/12; G02B 6/42; H01L 21/00

IPC 8 full level

C03C 15/00 (2006.01); G02B 6/36 (2006.01); G02B 6/42 (2006.01)

CPC (source: EP)

C03C 15/00 (2013.01); G02B 6/4244 (2013.01); G02B 6/4257 (2013.01); G02B 6/3692 (2013.01); G02B 6/4214 (2013.01); G02B 6/4245 (2013.01); G02B 6/4274 (2013.01)

Citation (search report)

See references of WO 9842628A1

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 9842628 A1 19981001; CN 1251565 A 20000426; EP 0970024 A1 20000112; EP 0970024 B1 20040804; US 6576150 B1 20030610

DOCDB simple family (application)

DE 9800849 W 19980323; CN 98803718 A 19980323; EP 98928055 A 19980323; US 40726499 A 19990927